MA44700 Series Surface Mount Low Power Step Recovery Diodes Rev. V5 Absolute Maximum Ratings 1,2 @ TA=+25 °C (Unless Otherwise Noted) Features • • • • • • Surface Mount Packages (SOT-23,SC-79) Low transition times SPC Process for Superior C-V Repeatability Tape and Reel Packaging Designed for Commercial Wireless Applications Also Offering RoHS Compliant Equivalent Parts Parameter Absolute Maximum Operating Temperature -65 °C to +125 °C Storage Temperature -65 °C to +125 °C Reverse Voltage 30V Forward Bias Current 50 mA Power Dissipation 250 mW Description Applications The MA44700 series step recovery are useful for surface mount low power applications. 1. Operation of this device above any one of these parameters may cause permanent damage. 2. Please refer to application note M538 for surface mounting instructions Typical Capacitance vs. Bias (V) freq=1MHz 8 MA44768 7 MA44769 6 Capacitance (pF) The MA44700 series of Step Recovery diodes is designed for use in low power multipliers with output frequencies of up to 5 GHz. These Step Recovery diodes generate harmonics by storing a charge as the diode is driven to forward conductance by the positive voltage of the input signal. When the signal reverses polarity, this charge is extracted. The Step Recovery diode will appear as a low impedance currentsource until all the charge is extracted, then it will “snap” to a higher impedance. This causes a voltage pulse to form in the impulse circuit of the multiplier. Step Recovery diodes make excellent high order multipliers such as comb generators. They are also useful as efficient moderate power X2-X4 multipliers. MA44767 5 4 3 2 1 0 0 5 10 15 20 25 30 Bias(V) Part Number (non-RoHS)1 RoHS Compliant Part Numbers1 CT2 Reverse Voltage (pF) (V) f=1 MHz, VR=6.0 V Min. Max. Nominal Carrier Transition Time (nS) (pS) Min. Typical Max Ir =10 uA Nominal Input Nominal Output (GHz) (GHz) MA44767-287T MAVR-044767-0287AT MAVR-044767-12790T 3.0 4.5 30 250-500 600 0.05-5 0.5-1.5 MA44768-287T MAVR-044768-0287AT MAVR-044768-12790T 1.6 2.4 30 75-225 250 0.1-1 0.5-2.5 MA44769-287T MA144769-287T MAVR-044769-12790T 0.8 1.2 30 20-50 150 0.1-1 1-5 1. 2. The prefix defines package style, configuration and packaging information. Contact representative for complete part identification. Capacitance @ 1 MHz 1 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA44700 Series Surface Mount Low Power Step Recovery Diodes Rev. V5 Case Styles SOT-23 (Case Style 287) SOT-23 (Case Style 287) F DIM. N A D B M G K L H E C J SC-79 (Case Style 1279) 0.048 0.008 ⎯ 0.040 ⎯ 0.013 0.020 0.003 0.006 0.110 0.119 0.047 0.056 0.037 typical 0.075 typical 0.103 ⎯ 0.024 ⎯ DIM. GRADIENT M N 10° max. 2° . . .30° DIM. B Cathode Mark ⎯ B C D E F G H J K L MILLIMETERS MIN. MAX. ⎯ 1.22 0.20 ⎯ 1.00 ⎯ 0.35 0.50 0.08 0.15 2.80 3.00 1.20 1.40 0.95 typical 1.90 typical 2.60 ⎯ 0.60 ⎯ SC-79 (Case Style 1279) Topview 10° Max Seating Plane F A INCHES MIN. MAX. E C A B C D E F G D H A INCHES MIN. MAX. MILLIMETERS MIN. MAX. 0.020 0.003 0.006 0.010 0.059 0.043 0.011 0.037 typical 0.028 0.008 0.010 0.014 0.067 0.051 0.012 0.50 0.08 0.15 0.25 0.08 1.50 0.28 0.71 0.20 0.25 0.36 0.15 1.30 0.30 0.043 0.94 1.09 10° Max G H 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice. MA44700 Series Surface Mount Low Power Step Recovery Diodes Rev. V5 Mounting Information SOT-23 The illustration indicates the recommended mounting pad configuration for the SOT-23 and SC-79 packages. Solder paste containing flux should be screened onto the pads to a thickness of 0.0050.007 inches. The plastic package is placed in position, firmly adhering to the solder paste. .030 min. 0.80 .037 0.95 Permanent attachment is performed by a reflow soldering procedure during which the tab temperature does not exceed +275 °C and the body temperature does not exceed +250 °C, for standard models and +260 °C for the RoHS compliant devices. Please refer to Application Note M538 for surface mounting instructions. .090 2.2 .035 min. 0.90 0.75 1.9 Dimenstions: inches mm SC-79 0.020 0.50 0.020 0.50 0.053 1.35 Dimenstions: inches mm Package Configuration SOT-23 (Case Style 287) SC-79 (Case Style 1279) 3 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions • North America Tel: 800.366.2266 / Fax: 978.366.2266 is considering for development. Performance is based on target specifications, simulated results, • Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300 and/or prototype measurements. Commitment to develop is not guaranteed. • Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298 PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology Visit www.macomtech.com for additional data sheets and product information. Solutions has under development. Performance is based on engineering tests. Specifications are typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available. M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make Commitment to produce in volume is not guaranteed. changes to the product(s) or information contained herein without notice.